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Rifles, Reloading, Optics, Equipment
Reloading
Case over pressure and altitude.
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<blockquote data-quote="SpeedGoatShooter37" data-source="post: 1323506" data-attributes="member: 98673"><p>Hello all. Before I get started, yes, I've searched the ends did the internet looking for a comprehensive answer to this question.</p><p></p><p>I was bit by the reloading bug several years ago when I was stationed in Rapid City. Elevation there is about 3300 feet. About a year ago I was re-assigned to NW Louisiana, where the elevation is about 300 feet.</p><p></p><p>Not once did I ever experience case over pressure while in Rapid City. No case flow, no sticky bolt, no cratered or flat primers, and no popped primers. As soon as I moved down here I've had it in three guns. The only, but undeniable, sign is a perfect circle from case flow into the plunger. My Savage 30-06 (the worst offender) and my 22-250 and 7mm-08 in 700s all seem to b sensitive to it now. New brass to boot.</p><p></p><p>The only variable that has changed is altitude and to a degree humidity. I'm shooting my same supply of powder that I had up there in very similar temperatures. Can someone please teach me the science as to how a slight change in the mercury can cause this, or give me a second opinion to the cause?</p></blockquote><p></p>
[QUOTE="SpeedGoatShooter37, post: 1323506, member: 98673"] Hello all. Before I get started, yes, I've searched the ends did the internet looking for a comprehensive answer to this question. I was bit by the reloading bug several years ago when I was stationed in Rapid City. Elevation there is about 3300 feet. About a year ago I was re-assigned to NW Louisiana, where the elevation is about 300 feet. Not once did I ever experience case over pressure while in Rapid City. No case flow, no sticky bolt, no cratered or flat primers, and no popped primers. As soon as I moved down here I've had it in three guns. The only, but undeniable, sign is a perfect circle from case flow into the plunger. My Savage 30-06 (the worst offender) and my 22-250 and 7mm-08 in 700s all seem to b sensitive to it now. New brass to boot. The only variable that has changed is altitude and to a degree humidity. I'm shooting my same supply of powder that I had up there in very similar temperatures. Can someone please teach me the science as to how a slight change in the mercury can cause this, or give me a second opinion to the cause? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Case over pressure and altitude.
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